The Animal strain, a one time event in the US in Reston Va, did, but the virus disappeared and only exists in test tubes right now. But it was absolutely harmless to the human immune system. Even contracted from infected blood via a cut in the skin, the virus disappeared in the human.
It's so called airborne characteristics are a subject much debated. In my view, since this particular strain did in fact affect the respiratory system, this indicates that it can be contracted through the breathing in of aerosol droplets from a sneeze or cough from a infected animal near enough or perhaps aided by a fan or AC system blower.
But it can't travel for any long distance unaided. aerosol droplets are considered contact with bodily fluids. Different from the hantavirus that can be transmitted through dust in the air as a result of disturbing a nest of a infected rodent. That can't happen with Ebola as when dried it is dead. It has to have the right environment to live very long outside the body. Humidity, nutrients..etc..
But let's get back to the point here.. All that was in regard to a animal, specifically a type of monkey, the Reston strain that is not the point of discussion here.
The known human strains are not reported to attack the respiratory system. they attack joints, and connective tissues, smooth muscles in the gut and perhaps the throat as occasionally their is a complaint of a sore throat but not the lungs..
These strains are also not known to spread until the patient is in end stage, unable to travel and obviously compromised. So sitting on airplane with someone not in end stage but infected, the incidence of contact with his her bodily fluids would be difficult and the chance low. Not zero, but low.
OK....now you can return to your utterly wasted efforts to have a useless panic attack.
And now, we return to our regularly scheduled panic attack.
FYI... the Reston strain has appeared twice in the US, once in (obviously) Reston, VA, and the second time in TX. It has been found in pigs in China and the Philippines, and appears to be endemic in both countries. I do not know if the reservoir has been identified.
As of a few years ago, a total of 15 people had been shown to have seroconverted. Active viremia was established in at least one case, but no symptomatic disease has ever been observed. Given the pathogenicity of the other known Ebola strains, the Reston strain is treated as a BSL4 agent and considered to have the same VHF potential (until proven otherwise... which may be a while).
I'm quoting from memory, but this information was all published in the WHO experts consultation on Ebola Reston pathogenicity in humans (1999).
Oops, I got the publication date of the WHO document wrong. It was published in 2009, not 1999... I have no idea how I made that mistake, since I was looking directly at the pdf file when I typed that.